Root canal treatment is needed when the blood or nerve supply of a tooth is infected through decay or injury.
The infection may spread through the root canal system of the tooth and this could lead to an abscess causing swelling of the tissues around the tooth and you may experience pain.
Root canal treatment is used to remove the infection from the root canal. The root is then cleaned and filled to prevent any further infection. If root canal treatment is not carried out, the infection will spread and the tooth may need to be taken out. Treatment usually involves 2 or more visits.
After root canal treatment it may be necessary to restore the tooth with a crown to provide extra support and strength to the tooth as after treatment the tooth can be more brittle.
The video: A filled or decayed tooth with an abscess. The filling is removed to access the cavity. The root canals are reamed to remove the tooth nerves. The tooth is filled.